These tombs were built into the side of a mountain so that ancient angels could reach the dead.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

In the shadow of a former battleground, the resting place for nearly 2,000 soldiers who died in World War I.

A rare example of World War I trenches from the British front.

A monument to the thousands of Canadian soldiers who died capturing the French ridge during World War I.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

Partially collapsed lava tube and cave system complete with concert hall, underground pond, and unique albino crabs.

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

The chefs at El Diablo use heat generated by an active volcano to cook the food.

This beautifully verdant lagoon is tucked below a massive volcano in a crater atop a black pebble beach.

This house's itty bitty size means no humans allowed.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

The metal leaves on this tree are engraved with the names of Holocaust victims.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

Museum of stuffed gophers set up in various scenes.

A mysterious taxidermy man-beast of the seven seas.

The oldest natural history museum in western Canada houses more than 5,000 vintage botanical and zoological specimens.

A six-ton wedding present for the King of the Scots.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

The most loyal of little dogs, or a Victorian era publicity stunt?

This small museum in a 17th-century building honors three iconic Scottish writers.